My Mooney Eagle has an intermittent alert (Buzzer) in the head set. It acted up today as I left Truckee climbing at 120 knots around 8300 feet. I pulled the circuit breakers for the stall horn and gear but it did not stop. Next I shutdown the avionics and it was gone after I powered it back up.
I have a Garmin GNS 530W and a GNS 430W. Has anyone seen this or has any idea where to look? It may be a Terrain alert but there was no visual warnings on the 530W! I have flown the route more than 20 times close to this altittude with no alerts!
Thanks,
Masoud